Which of the following statement is not true about water?
water has more density than ice.
Each water molecule is linked to 4
water molecules tetrahedrally.
In water each oxygen atom is bonded
to 2 hydrogen atoms by hydrogen
bonds.
water has minimum density at
277 kelvin.

може ли да зареждате повече информация, моля

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.